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PDX - ONT

$48 Find cheap flights from Portland to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Ontario departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 6/5
Wed 6/12

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Ontario.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Ontario.
In the last 7 days travelers have searched 42,830,901 times on KAYAK, and here is why:

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Cheap flight deals from Portland to Ontario (PDX-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:14 pm - 7:29 pmPDX-ONT
2h 15mnonstop
3:56 pm - 6:11 pmONT-PDX
2h 15mnonstop
$58Frontier
Find Deal
Tue, Jun 4 - Tue, Jun 11
5:14 pm - 7:35 pmPDX-ONT
2h 21mnonstop
2:01 pm - 4:14 pmONT-PDX
2h 13mnonstop
$61Frontier
Find Deal
Wed, Aug 21 - Tue, Aug 27
6:55 pm - 9:10 pmPDX-ONT
2h 15mnonstop
1:54 pm - 4:14 pmONT-PDX
2h 20mnonstop
$67Frontier
Find Deal
Sat, May 25 - Tue, May 28
6:55 pm - 9:10 pmPDX-ONT
2h 15mnonstop
4:52 pm - 7:12 pmONT-PDX
2h 20mnonstop
$68Frontier
Find Deal
Sat, May 25 - Thu, May 30
6:55 pm - 9:10 pmPDX-ONT
2h 15mnonstop
5:00 pm - 7:20 pmONT-PDX
2h 20mnonstop
$69Frontier
Find Deal
Sat, May 25 - Sun, May 26
8:02 pm - 10:17 pmPDX-ONT
2h 15mnonstop
3:35 pm - 5:55 pmONT-PDX
2h 20mnonstop
$71Frontier
Find Deal
Thu, May 30 - Sat, Jun 1
6:07 pm - 11:58 pmPDX-ONT
5h 51m1 stop
3:56 pm - 6:11 pmONT-PDX
2h 15mnonstop
Tue, Jun 4 - Tue, Jun 11
5:40 am - 12:13 pmPDX-ONT
6h 33m1 stop
6:50 am - 1:32 pmONT-PDX
6h 42m1 stop
$206Delta
Find Deal
Thu, May 30 - Thu, Jun 6
7:00 pm - 11:43 pmPDX-ONT
4h 43m1 stop
7:45 am - 1:31 pmONT-PDX
5h 46m1 stop
$232Delta
Find Deal
Tue, Jul 16 - Tue, Jul 23
3:15 pm - 10:37 pmPDX-ONT
7h 22m1 stop
1:25 pm - 8:46 pmONT-PDX
7h 21m2 stops
$249Delta
Find Deal
Tue, Jun 4 - Tue, Jun 11

Flights from Portland to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Portland to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Portland to Ontario?

The average price of all flights from Portland to Ontario clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Portland to Ontario, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Ontario, Saturday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Portland to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portland to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Portland to Ontario is April, where tickets cost $136 on average. On the other hand, the most expensive months are March and December, where the average cost of tickets is $362 and $348 respectively.

How far in advance should I book a flight from Portland to Ontario?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Portland to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Portland to Ontario, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 69 days before departure.

Which airlines provide the cheapest flights from Portland to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Portland to Ontario found by KAYAK users in the last 72 hours was for $58 on Frontier, followed by Delta ($206). One-way flight deals have also been found from as low as $48 on Frontier and from $98 on United Airlines.

Which airlines fly non-stop between Portland and Ontario?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Portland to Ontario.
There are 3 airlines that fly nonstop from Portland to Ontario. They are: Alaska Airlines, Frontier and Southwest. The cheapest price of all airlines flying this route was found with Frontier at $48 for a one-way flight. On average, the best prices for this route can be found at Frontier.

How many flights are there between Portland and Ontario per day?

Each day, there are between 4 and 6 nonstop flights that take off from Portland and land in Ontario, with an average flight time of 2h 14m. The most common departure time is 7:00 pm and most flights take off in the afternoon. Each week, there are 33 flights. The most frequent day of departure is Sunday, when 18% of all weekly flights depart. The fewest flights depart on a Saturday.

Which cabin class options are there for flights between Portland and Ontario?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Portland to Ontario take?

Nonstop flights from Portland generally make it to Ontario in 2h 15m. The flying distance between the two cities is 839 miles.

What’s the earliest departure time from Portland to Ontario?

Early birds can take the earliest flight from Portland at 8:04 am and will be landing in Ontario at 10:20 am.

What’s the latest departure time from Portland to Ontario?

If you prefer to fly at night, the latest flight from Portland to Ontario jets off at 8:30 pm and lands at 10:50 pm.

Good to know

Low season

July

High season

April

Cheapest flight

$48
Best time to beat the crowds but there is an average 8% increase in price.
Most popular time to fly and prices are also 48% lower on average.
Flight from Portland to Ontario

When to book flights from Portland to Ontario

Are your dates flexible? Find out the best times to travel from Portland to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Ontario

  • Does ONT have an on-site car rental facility?

    ONT does not have an on-site car rental facility. However, it does have an off-site car rental facility which is connected to the airport by a free airport shuttle service. This car rental facility houses car rental agencies like Alamo, Budget, Avis, Enterprise, Thrifty, Payless, and National.

  • Is there any other airport that serves Ontario apart from ONT?

    Apart from ONT, Ontario is also served by Los Angeles International Airport (LAX). There are no direct means of public transportation between Ontario and LAX. Hence, to cover the distance between these two points, you'll first need to board a taxi or bus from the airport to Los Angeles' city center. At the city center, you can then board a bus or a train to Ontario.

  • Does PDX have any unique services?

    At PDX, you can enjoy relaxing spa services at The Dragontree Spa. Open from 9 am to 8 pm from Sunday to Friday and 9 am to 6 pm on Saturdays, this spa offers a wide range of spa services at affordable rates. Given that it boasts experienced professionals, you'll receive quality services at this Concourse C spa.

  • Does PDX have a lounge?

    If you'd like to relax in a lounge at PDX as you wait for your flight to ONT, you can check out the amazing Alaska Lounge. Situated near Gate C5 in Concourse C, this lounge boasts comfortable seats, clean washrooms, snacks, and beverages. Given that it is not affiliated with any airline, you can enter this lounge regardless of the airline you're traveling with, provided you pay its entry fee.

  • What is the cheapest flight from Portland to Ontario?

    In the last 3 days, the lowest price for a flight from Portland to Ontario was $48 for a one-way ticket and $58 for a round-trip.

  • Do I need a passport to fly between Portland and Ontario?

    No, a passport isn't needed to fly from Portland to Ontario. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Portland to Ontario?

    On your way to Ontario, you’ll fly out from Portland. You’ll be landing at Ontario.

  • Which airlines offer Wi-Fi service onboard planes from Portland to Ontario?

    Alaska Airlines, Delta, and American Airlines offer inflight Wi-Fi service on the Portland to Ontario flight route.

  • Which aircraft models fly most regularly from Portland to Ontario?

    The Airbus A321-100/200 is the aircraft model that flies most regularly on the Portland to Ontario flight route.

  • Which airline alliances offer flights from Portland to Ontario?

    oneworld is the only airline alliance operating flights between Portland and Ontario.

  • On which days can I fly direct from Portland to Ontario?

    There are nonstop flights from Portland to Ontario on a daily basis.

  • Which is the best airline for flights from Portland to Ontario, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Portland to Ontario are Alaska Airlines and Delta. With an average price for the route of $318 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $375 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Portland to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Portland with another airline. Booking your flights between Portland and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from PDX to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $44 or less one-way and $68 or less round-trip.
  • On the date you're scheduled to fly to Ontario, you should aim to be at Portland International Airport (PDX) at least 2h ahead of your departure time. Getting to the airport this early will enable you to go through the airport's security checkpoints in time for your flight. It will also allow you to check out the superb destinations available at the airport.
  • While waiting for your flight to Ontario International Airport (ONT), you can privately breastfeed your baby. This is because this remarkable airport features clean, spacious, and well-equipped breastfeeding rooms near the airport South Lobby and Gate D2.
  • In case you're traveling with older kids, you can let them enjoy themselves in one of PDX's children's play areas. Located near Gate C17 in Concourse C and gate D7 in Concourse D, these play areas feature child-proof playgrounds and various toys.
  • At ONT, you can easily withdraw the cash you need, as this airport features several ATMs. The ATMs are located on the Upper and Lower levels of Terminals 2 and 4, near the front entrance of the International Terminal and in the Rental Car Facility.
  • If you'd like assistance getting emergency housing, transportation assistance, or wiring some cash, visit Traveler's Aid, a non-profit organization that assists stranded and distressed passengers. In order to cater to as many people as possible, this organization has two branches at ONT. One is between the baggage claim and escalator in Terminal 2, while the other is a short distance from the baggage claim in Terminal 4. Both operate from 9 am to 9 pm.
See more tips

Prefer to fly non-stop from Portland to Ontario?

Find which airlines fly direct from Portland to Ontario, which days they fly and book direct flights.

Nonstop departures

Portland to Ontario

Monday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Tuesday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Wednesday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Thursday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Friday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Saturday

Alaska Airlines, British Airways, Frontier

Alaska Airlines, British Airways, +1 more

Sunday

Alaska Airlines, British Airways, Frontier, +1 more

Alaska Airlines, British Airways, +2 more

See more direct flights

Nonstop returns

Ontario to Portland

Monday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Tuesday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Wednesday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Thursday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Friday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Saturday

Alaska Airlines, Frontier

Alaska Airlines, Frontier

Sunday

Alaska Airlines, Frontier, Southwest

Alaska Airlines, Frontier, +1 more

See more direct flights
See more direct flights

Top 5 airlines serving from Portland to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Portland to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9137 reviews
7.3Entertainment
8.6Crew
8.2Boarding
7.9Comfort
7.3Food
Airline reviews

My boarding pass birthdate was printed incorrectly causing me to spend an extra hour in a check-in and then again TSA line and to miss a chance to have dinner pre-flight. My window seat was given away and was replaced with a middle seat. I would have liked an opportunity to charge my phone and take advantage of movies but many of the departure gate chargers weren’t operational and I don’t know of an in-flight charging option, The flight left 45 late after trouble with unruly passengers, and I was glad staff removed them.

6.0 GoodAnonymous, Apr 2024PDX - SAN
Read more about Alaska Airlines reviews

My boarding pass birthdate was printed incorrectly causing me to spend an extra hour in a check-in and then again TSA line and to miss a chance to have dinner pre-flight. My window seat was given away and was replaced with a middle seat. I would have liked an opportunity to charge my phone and take advantage of movies but many of the departure gate chargers weren’t operational and I don’t know of an in-flight charging option, The flight left 45 late after trouble with unruly passengers, and I was glad staff removed them.

Horrible. I likely will have to spend several thousand dollars to rebook my international flights, due to their delays, plus a hotel in SF. I can’t wait to never fly them again!

Quick easy boarding. Airport was unprepared for early landing and we were waiting in the plane for 20 minutes before getting a gate.

It was so easy to board using my boarding pass on my iPhone, and I liked what I was given on the plane for food and drink, and everyone was very friendly.

dont re-route to San Jose. Re-route to closer airport. Provide shuttle bus to go to SFO, not just LYFT vouchers.

Staff seemed genuinely nice, not just going through the motions.

I would have rated the entire experience much better were it not for two things: 1. There was inconsistency between what we were told once on the plane vs. the answer I received to the question about "spreading out" from our assigned seats because the flight was sparsely populated, and the entire row we were in was empty but for us. I asked about one of us moving over one seat to make more room for us; before getting on the plane, I was told we could, which seemed like a sensible answer. Once on the plane, it was announced that we needed to stay in our assigned seats despite all of the empty space in our row, which seemed unneccessarily restrictive. 2. To add to the discomfort, we sat on the tarmac once the plane landed in Burbank for over half an hour waiting for a gate to become available. During that time we had to remain seated and buckled in, which was becoming more difficult as time dragged on, especially for my wife. If all of this was due to regulations, that may mitigate the sense of "needless" restriction somewhat, but it points to a need to make regulations less restrictive where it is not appropriate for the current conditions. The crew was not "nasty" about the restrictions, so I do not resent their actions, but it certainly would have been a much more pleasant flight if we had a few more options when it comes to comfort.

The seat side plug ins didn’t work in my row, and I ran out of things to do since my iPad and iPhone ran out of juice. The flight attendant offered me a free drink but I don’t drink. I suggested a free snack box instead and she just shrugged and walked off. Why do us non-drinkers get the short end of the stick?

Flight left two hours late with no real explanation and they inexplicably had the heat running on the flight as well

I like Alaska Air fine. Great crew. Late departure still arrived on time.

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Was a great smooth flight from Detroit to San Diego.

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Too many fees (but that seems to apply to all airlines nowadays)

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

They charged me 212.00 for a heavy check in bag at the gate. The pricing and process was so confusing - as if it was designed to purposefully gouge customers who need to board plane. That experience combined with the outrageous price charged will prevent me from ever flying Spirit again. And I’ll be sure to tell the story to anyone who cares to hear.

The text told me it was changed to Terminal E and Gate D5. But with no one on site to ask questions there was confusion on where to go as all the gates were E's. Then we took the skyline to the D area. We left to get something to eat. No announcement was made but my daughter happened to asked and they told her our gate was moved to D12. I will not fly Spirit again.

The agent at the check in desk was absolutely rude. The rest of the team after that was good, but the check in process at LAS was miserable. The woman at the desk spoke like we were stupid and was rude throughout the process.

Its so random that they only allow 40 pounds on checked bags when all airlines take 55. They then charge you for each 10 extra pounds, so my checked suitcase was $130 and the flight $30 ... its like whattt, im for sure not traveling with Spirit again

So bad. The check in process was laborious and the check in agent didn't seem to know how to manage the process efficiently and was confused about how to check in my son's sports equipment. The baggage fees were outrageous and so expensive. $90 for a carry on bag? And $200 additional for 2 check ins. The security lines were insanely long and the terminal was not very nice in the Spirit area. $5 for a water on board. It was my first and last time flying Spirit - I tried to save $ by flying them due to the accommodating schedule but I should have paid for Southwest, because it would've actually ended up less expensive due to the free bags with Southwest. There were no charging ports on the airplane, no wifi and really uncomfortable seating. The flight crew were great though, courteous and efficient in their boarding. Flight was delayed 1 hour, but we made up 15 minutes in flight.

My experience was better than expected. What I did find not so great was the seats. Very little room, they did not recline and the tray table was the size of a post card. There was no food to try, just standard snacks that you had to pay for and I don’t know of any entertainment. I would fly again even though everything was an upcharge. Flight was on time with little disturbance

Okay, cost of baggage and bidding for a seat is weird.

thy don't even ofer water we have to buy it for $4.49 and paid for our cary on bags $100 each we never will fly in this company again.

Super cool and laid back, three lovely ladies. Couldn’t ask for better service.

Not good 😐 Over priced baggage fees Small hard seats No wifi or entertainment options 😕

Didn't like anything!! Horrible flight. Small seating area and hard seats. Butt was sore after 2 hour flight to Seattle No entertainment or free refreshments No wifi or USB charging receptacles to charge phone entoute like other airliners Luggage rates were 3 times as much as competitors. Difficult to navigate online luggue process to pre pay before flight Overall bad experience WILL NEVER RIDE OR RECOMMEND FRONTIER TO FRIENDS OR FAMILY MEMBERS!!! THIS IS A SHAME!! MOST MESERIBLE FLIGHT OF MY LIFE!! AND I THOUGHT SPIRIT WAS 👎 YOU GOT THEM BEAD HANDS DOWN!!

Flight was a little late taking off. Seats are too upright, no ports to charge devices, no wifi, no entertainment

Six hour delay. Poor customer service. No voucher. Bad communication. Missed important appointments.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

Flight was canceled with little warning. Flight was rebooked through Ontario, California and connecting flight was delayed by over three hours. Frontier is living up to their Greyhound of the skies reputation for sure.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Book cheap flights from Portland to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Portland to Ontario found on KAYAK in the last 72 hours.
6/2Sun
nonstopFrontier
2h 15mPDX-ONT
$48
7/9Tue
nonstopFrontier
2h 21mPDX-ONT
$50
6/1Sat
1 stopUnited Airlines
6h 33mPDX-ONT
$98
5/26Sun
1 stopDelta
4h 54mPDX-ONT
$103
6/8Sat
1 stopUnited Airlines
6h 33mPDX-ONT
$133
6/14Fri
1 stopAlaska Airlines
6h 14mPDX-ONT
$138
6/12Wed
1 stopAlaska Airlines
9h 08mPDX-ONT
$157
5/17Fri
1 stopDelta
4h 31mPDX-ONT
$159
5/24Fri
1 stopAmerican Airlines
6h 29mPDX-ONT
$259
5/18Sat
1 stopAmerican Airlines
7h 08mPDX-ONT
$284

Search by stops

Search by airline

Search by price

Last minute flights from Portland to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Portland to Ontario that are departing in the next 10 days.
5/11Sat
multi-stopFrontier
8h 26mPDX-ONT
5/12Sun
multi-stopFrontier
23h 00mONT-PDX
$164
5/11Sat
multi-stop
22h 08mPDX-ONT
5/14Tue
multi-stop
25h 18mONT-PDX
$166
5/7Tue
multi-stopFrontier
22h 13mPDX-ONT
5/12Sun
multi-stopFrontier
20h 41mONT-PDX
$238
5/11Sat
multi-stopDelta
7h 08mPDX-ONT
5/16Thu
multi-stopDelta
6h 24mONT-PDX
$318
5/10Fri
multi-stopDelta
6h 22mPDX-ONT
5/12Sun
multi-stopDelta
6h 43mONT-PDX
$334
5/11Sat
multi-stopUnited Airlines
7h 09mPDX-ONT
5/17Fri
multi-stopUnited Airlines
4h 02mONT-PDX
$348
5/9Thu
multi-stopUnited Airlines
7h 09mPDX-ONT
5/12Sun
multi-stopUnited Airlines
4h 02mONT-PDX
$364
5/8Wed
nonstopAlaska Airlines
2h 13mPDX-ONT
5/14Tue
nonstopAlaska Airlines
2h 20mONT-PDX
$812
5/8Wed
nonstopAlaska Airlines
2h 13mPDX-ONT
5/11Sat
nonstopAlaska Airlines
2h 20mONT-PDX
$917
5/10Fri
multi-stopAmerican Airlines
9h 04mPDX-ONT
5/13Mon
multi-stopAmerican Airlines
11h 30mONT-PDX
$1,291

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Portland - Ontario Flights

Departure:

Portland (PDX)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Portland

Cabin classes:

$606
$542
$46